プログレッシブ和英中辞典(第4版)の解説
とうこうせいてい【東高西低】
〔気圧の〕(a pattern with) a high pressure area in the northeast (of Japan) and a low pressure area in the southwest
日本語の解説|東高西低とは
〔気圧の〕(a pattern with) a high pressure area in the northeast (of Japan) and a low pressure area in the southwest